try to do kernel decomp

.clang-format

@@ -0,0 +1,22 @@
+BasedOnStyle: LLVM
+IndentWidth: 4
+AlignConsecutiveAssignments: true
+AlignEscapedNewlines: Left
+AlignTrailingComments: Always
+BreakBeforeBraces: Allman
+ColumnLimit: 0
+MaxEmptyLinesToKeep: 1
+InsertNewlineAtEOF: true
+BreakBeforeBinaryOperators: NonAssignment
+BinPackArguments: false
+PenaltyBreakBeforeFirstCallParameter: 1000
+ContinuationIndentWidth: 4 # Adjust the indent width for continuation lines
+
+IncludeCategories:
+  - Regex: '^(<.+>)$'
+    Priority: 1
+  - Regex: '^"(.+\.hpp)"$'
+    Priority: 2
+  - Regex: '.*'
+    Priority: 3
+IncludeBlocks: Regroup

shaders/A2Task1KernelDecomposition.comp

@@ -11,14 +11,36 @@ layout(local_size_x_id = 0, local_size_y = 1, local_size_z = 1) in;
 
 layout(push_constant) uniform PushStruct {
     uint size;
-    uint offset;
 } p;
 
-layout(binding = 0) buffer inBuffer { uint v[]; };
-layout(binding = 1) buffer outBuffer { uint g_v[]; };
+layout(binding = 0) buffer inBuffer {
+    uint v[];
+};
+layout(binding = 1) buffer outBuffer {
+    uint g_v[];
+};
 
 // TODO: Shared variables
+// 512 Elements but initial reduction is done
+const uint bufferSize = 256;
+shared uint[bufferSize] localBuffer;
 
 void main() {
     // TODO: Kernel implementation
+
+    for (uint i = p.size / 2; i < 0; i -= 2) {
+        localBuffer[i] = v[i] + v[i + 1];
+    }
+
+    for (uint j = bufferSize ; j != 0; j / 2) {
+        for (uint i = bufferSize / 2; i < 0; i -= 2) {
+            localBuffer[i] = localBuffer[i] + localBuffer[i + 1];
+        }
+    }
+
+    localBuffer[0] = localBuffer[0] + localBuffer[1];
+
+    for (uint i = 0; i < bufferSize; i ++) {
+        g_v[i] = localBuffer[i];
+    }
 }

shaders/A2Task1Sequential.comp

@@ -19,9 +19,5 @@ layout(binding = 0) buffer inoutBufer { uint v[]; };
 void main() {    
     uint gIDx = gl_GlobalInvocationID.x;
     
-    if (gIDx + p.offset >= p.size) {
-        return;
-    }
-
     v[gIDx] += v[gIDx + p.offset];
 }

src/A2Task1Solution/KernelDecomposition.cpp

@@ -2,8 +2,7 @@
 
 #include "host_timer.h"
 
-A2Task1SolutionKernelDecomposition::A2Task1SolutionKernelDecomposition(AppResources &app, uint workGroupSize, std::string shaderFileName) :
-    app(app), workGroupSize(workGroupSize), shaderFileName(shaderFileName) {}
+A2Task1SolutionKernelDecomposition::A2Task1SolutionKernelDecomposition(AppResources &app, uint workGroupSize, std::string shaderFileName) : app(app), workGroupSize(workGroupSize), shaderFileName(shaderFileName) {}
 
 void A2Task1SolutionKernelDecomposition::prepare(const std::vector<uint> &input)
 {
@@ -21,16 +20,14 @@ void A2Task1SolutionKernelDecomposition::prepare(const std::vector<uint> &input)
         {{0U, 0U, sizeof(workGroupSize)}},
     };
     std::array<uint32_t, 1> specValues = {workGroupSize}; // for workgroup sizes
-    vk::SpecializationInfo specInfo = vk::SpecializationInfo(CAST(specEntries), specEntries.data(),
-                                    CAST(specValues) * sizeof(int), specValues.data());
+    vk::SpecializationInfo specInfo    = vk::SpecializationInfo(CAST(specEntries), specEntries.data(), CAST(specValues) * sizeof(int), specValues.data());
 
     Cmn::createShader(app.device, shaderModule, shaderFileName);
     Cmn::createPipeline(app.device, pipeline, pipelineLayout, specInfo, shaderModule);
 
-    for (int i = 0; i < 2; i++) {
-        createBuffer(app.pDevice, app.device, mpInput->size() * sizeof((*mpInput)[0]),
-            vk::BufferUsageFlagBits::eTransferDst | vk::BufferUsageFlagBits::eTransferSrc | vk::BufferUsageFlagBits::eStorageBuffer,
-            vk::MemoryPropertyFlagBits::eDeviceLocal, "buffer_" + std::to_string(i), buffers[i].buf, buffers[i].mem);
+    for (int i = 0; i < 2; i++)
+    {
+        createBuffer(app.pDevice, app.device, mpInput->size() * sizeof((*mpInput)[0]), vk::BufferUsageFlagBits::eTransferDst | vk::BufferUsageFlagBits::eTransferSrc | vk::BufferUsageFlagBits::eStorageBuffer, vk::MemoryPropertyFlagBits::eDeviceLocal, "buffer_" + std::to_string(i), buffers[i].buf, buffers[i].mem);
     }
 
     fillDeviceWithStagingBuffer(app.pDevice, app.device, app.transferCommandPool, app.transferQueue, buffers[0], input);
@@ -60,6 +57,29 @@ void A2Task1SolutionKernelDecomposition::compute()
     // (A2Task1SolutionKernelDecomposition::result())
     // HINT: You can alternate between the two provided descriptor sets to implement ping-pong
 
+    uint blocksize = 512;
+    uint kernelCount = mpInput->size() / blocksize;
+    PushConstant p;
+
+    for (; kernelCount > 0; kernelCount /= 2)
+    {
+        activeBuffer = activeBuffer == 0 ? 1 : 0;
+        cb.bindDescriptorSets(vk::PipelineBindPoint::eCompute, pipelineLayout, 0U, 1U, &descriptorSets[activeBuffer], 0U, nullptr);
+        p.size = blocksize;
+
+        cb.pushConstants(pipelineLayout, vk::ShaderStageFlagBits::eCompute, 0, sizeof(PushConstant), &p);
+
+        // for loop to call each kernel
+        for (int i = 0; i < kernelCount; i++)
+        {
+            cb.dispatch(i * blocksize, 0, 0);
+        }
+
+        vk::MemoryBarrier memoryBarrier(vk::AccessFlagBits::eShaderWrite, vk::AccessFlagBits::eShaderRead);
+        cb.pipelineBarrier(vk::PipelineStageFlagBits::eComputeShader, vk::PipelineStageFlagBits::eComputeShader, vk::DependencyFlags(), 1, &memoryBarrier, 0, nullptr, 0, nullptr);
+    
+        std::cout << "deine mum \n" ;
+    }
     cb.end();
 
     vk::SubmitInfo submitInfo = vk::SubmitInfo(0, nullptr, nullptr, 1, &cb);

src/A2Task1Solution/Sequential.cpp

@@ -56,9 +56,8 @@ void A2Task1SolutionSequential::compute()
     uint inputSize = mpInput->size();
     PushConstant pc;
     pc.size = inputSize;
-    pc.offset = inputSize / 2;
 
-    for (; pc.offset != 0 ; pc.offset = pc.offset / 2)
+    for (pc.offset = inputSize / 2; pc.offset != 0 ; pc.offset = pc.offset / 2)
     {
         cb.pushConstants(pipelineLayout, vk::ShaderStageFlagBits::eCompute, 0, sizeof(PushConstant), &pc);
 

src/A2Task2Solution/Naive.cpp

@@ -1,6 +1,7 @@
 #include "Naive.h"
 
 #include "host_timer.h"
+#include <iostream>
 
 A2Task2SolutioNaive::A2Task2SolutioNaive(
     AppResources &app, uint workGroupSize):
@@ -64,7 +65,6 @@ void A2Task2SolutioNaive::compute() {
     // That buffer is read back for the correctness check
     // (A2Task2SolutionNaive::result())
     // HINT: You can alternate between the two provided descriptor sets to implement ping-pong
-    
     cb.end();
 
     vk::SubmitInfo submitInfo = vk::SubmitInfo(0, nullptr, nullptr, 1, &cb);

src/main.cpp

@@ -39,14 +39,14 @@ void run_A2_task1(AppResources &app){
         }
 
     };
-    A2Task1SolutionInterleaved interleavedSolution(app, 128);
-    evaluateTask1Solution(&interleavedSolution, "Interleaved");
+    // A2Task1SolutionInterleaved interleavedSolution(app, 128);
+    // evaluateTask1Solution(&interleavedSolution, "Interleaved");
 
-    A2Task1SolutionSequential sequentialSolution(app, 128);
-    evaluateTask1Solution(&sequentialSolution, "Sequential");
+    // A2Task1SolutionSequential sequentialSolution(app, 128);
+    // evaluateTask1Solution(&sequentialSolution, "Sequential");
 
-    // A2Task1SolutionKernelDecomposition kernelDecompositionSolution(app, 128, workingDir +"build/shaders/A2Task1KernelDecomposition.comp.spv");
-    // evaluateTask1Solution(&kernelDecompositionSolution, "KernelDecomposition");
+    A2Task1SolutionKernelDecomposition kernelDecompositionSolution(app, 128, workingDir +"build/shaders/A2Task1KernelDecomposition.comp.spv");
+    evaluateTask1Solution(&kernelDecompositionSolution, "KernelDecomposition");
 
     // A2Task1SolutionKernelDecomposition kernelDecompositionUnrollSolution(app, 128, workingDir +"build/shaders/A2Task1KernelDecompositionUnroll.comp.spv");
     // evaluateTask1Solution(&kernelDecompositionUnrollSolution, "KernelDecomposition Unroll");
@@ -91,11 +91,11 @@ void run_A2_task2(AppResources& app){
     A2Task2SolutioNaive naiveSolution(app, 128);
     evaluateTask2Solution(&a2Task2, &naiveSolution, "Naive",5);
 
-    A2Task2SolutionKernelDecomposition kernelDecompositionSolutionLocal(app, sizeLocal);
-    evaluateTask2Solution(&a2Task2Local, &kernelDecompositionSolutionLocal, "Kernel Decomposition that fits in one workgroup (normal if 'slow')",5);
+    // A2Task2SolutionKernelDecomposition kernelDecompositionSolutionLocal(app, sizeLocal);
+    // evaluateTask2Solution(&a2Task2Local, &kernelDecompositionSolutionLocal, "Kernel Decomposition that fits in one workgroup (normal if 'slow')",5);
 
-    A2Task2SolutionKernelDecomposition kernelDecompositionSolution(app, 128);
-    evaluateTask2Solution(&a2Task2, &kernelDecompositionSolution, "Kernel Decomposition",5);
+    // A2Task2SolutionKernelDecomposition kernelDecompositionSolution(app, 128);
+    // evaluateTask2Solution(&a2Task2, &kernelDecompositionSolution, "Kernel Decomposition",5);
         
 }
 int main()